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采用胶质芽胞杆菌(Bacillus mucilaginosus)菌肥均匀拌入苗床育苗基质的方式,研究了不同添加比例对红花大金元(Honghuadajinyuan)和云烟85(Yunyan85)幼苗生长的影响。结果表明:育苗基质添加胶质芽孢杆菌菌肥能够有效促进红花大金元幼苗根系的发育,增加其根系总长、根表面积和根体积,同时促进了侧根的生长,其中5%添加量烟株幼苗根系活力较对照增加90.2%,总生物量较对照增加81.1%,且N、P、K的累积量也显著增加;添加胶质芽孢杆菌菌肥能显著提高云烟85的根系活力,其中5%添加量较对照增加54.8%,随着添加量的增加总生物量较对照呈显著增加趋势,但处理间差异不显著,5%添加量时较对照增加26.2%,N、P、K的累积量也显著增加。可见,苗床添加胶质芽孢杆菌菌肥对烟草幼苗的生长发育及营养物质的吸收累积具有促进作用,其中以苗床5%添加量时效果最优。
Bacillus mucilaginosus was applied to seedbed in nursery bed uniformly to study the effects of different addition rates on seedling growth of Honghuadajinyuan and Yunyan85. The results showed that the addition of Bacillus subtilis bacterial culture seedling could effectively promote the root development, increase the total root length, root surface area and root volume, and promote the growth of lateral roots. The 5% The root activity of seedlings increased by 90.2% compared with the control, the total biomass increased 81.1% compared with the control, and the accumulation of N, P, K also increased significantly. Adding Bacillus subtilis could significantly increase the root activity of Yunyan 85, Compared with the control, the total biomass increased 54.8% compared with the control. However, the total biomass increased significantly as compared with the control, but there was no significant difference between the treatments. The amount of N, P and K increased by 26.2% at 5% Also increased significantly. Can be seen that the addition of Bacillus subtilis bacterial strain on tobacco seedling growth and nutrient absorption and accumulation have a catalytic role, of which 5% of seedbed when the best results.